Bum Bath 

The art of washing your entire vehicle with the sponge/squegee at the gas pump in less time than it takes to fill your gas tank.

Hey watch this. I'll give my truck a Bum Bath before my tank is full.

Bum Bath by Gruteman October 2, 2012

Bum Grapes 

Slang reference to the anal condition of piles, more commonly piles induced by vegetable-bum-sex

Ooh my bum grapes are on fire!

Bum Grapes by Tom May 2, 2003

Bum Buttoned 

When the buttons of a shirt are not alligned properly.

Look in the mirror, your shirt is bum buttoned.

Bum Buttoned by Gustavas May 17, 2011

bum chigger 

1. a form of small insect that burrows within one's rectal area.
2. an insult deriving from the small rectal-burrowing insect.

"shut the fuck up, bum chigger"

bum chigger by matt August 27, 2003

bum-fu

a style of martial arts mastered by very few of the bumby class. it combines drunken boxing, aikido, and kenpo to form the ideal style of martial arts for the 'bumby' archetype.

"I know bum-fu!"

"Show me."

bum-fu by DryGrain October 12, 2004

bum trundler 

An individual who frequently or unexpectedly neglects his regular companions in the pursuit of sexual gratification.
Derived from the accusation that these individuals seek to "trundle" (push/drive) the opposite sex, rather than partake in regular social activities.

Man X: Do you wish to accompany me and others to our regular meeting place?
Man Y: I cannot right now as i must urgently meet Woman Z
Man X: You sir, are a total and complete bum trundler.

bum trundler by Bastard Loaf September 7, 2008

bum-hug 

When you hug your boo with your hands on their bum!

A nice tight bum-hug is a great day to start the day!

bum-hug by rudeboi69 March 15, 2008